Disable a test that fails on mac.  I enabled this in r14684, but it's not ready yet for mac.
Disable a test that fails on mac.  I enabled this in r14684, but
it's not ready yet for mac.

TBR=evan

Review URL: http://codereview.chromium.org/100083


git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@14686 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser